[FT] Numpy 2.0 support

[guipenedo]

Issue encountered

lighteval does not support numpy 2.0

https://huggingface.slack.com/archives/C055130UYQG/p1733147324129099?thread_ts=1733143922.334659&cid=C055130UYQG

[jamesbraza]

ml-dtypes>=0.5 (https://github.com/jax-ml/ml_dtypes/blob/v0.5.0/pyproject.toml#L24) requires numpy>=2 for Python 3.13.

This means lighteval is not resolvable in certain environments now due to requiring numpy v1.

[lewtun]

Gently pinging @clefourrier @NathanHB again as this is an important dependency issue to resolve IMO

[clefourrier]

Will do it this morning after I wrap up caching, thanks a lot for the ping

[clefourrier]

It's been done in #913